A compound having GSK-3 inhibitory activity. A 1 and A 3 are a single bond, an aliphatic hydrocarbon; A 2 and A 4 are a single bond, CO, COO, etc.; G 1 is a single bond, an alicyclic hydrocarbon, aromatic hydrocarbon, etc.; G 2 is H, an aliphatic hydrocarbon, an alicyclic hydrocarbon, an aromatic hydrocarbon, etc.; A 5 is a single bond, NR; R 2 is H, halogen, an aliphatic hydrocarbon, etc.; A 6 is a single bond, NR, CO, etc.; R 3 is H, halogen, nitro, saturated aliphatic hydrocarbon, etc.; and wherein R is H or an lower aliphatic hydrocarbon group.